20198672

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{269}}^1$

素因数の和:328

約数の個数: 60

約数和(自身を含む): 44645580

約数和(自身を除く): 24446908

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 269, 304, 361, 494, 538, 722, 988, 1076, 1444, 1976, 2152, 2888, 3497, 3952, 4304, 4693, 5111, 5776, 6994, 9386, 10222, 13988, 18772, 20444, 27976, 37544, 40888, 55952, 66443, 75088, 81776, 97109, 132886, 194218, 265772, 388436, 531544, 776872, 1063088, 1262417, 1553744, 2524834, 5049668, 10099336, 20198672]

約数ペア:

[(1, 20198672), (2, 10099336), (4, 5049668), (8, 2524834), (13, 1553744), (16, 1262417), (19, 1063088), (26, 776872), (38, 531544), (52, 388436), (76, 265772), (104, 194218), (152, 132886), (208, 97109), (247, 81776), (269, 75088), (304, 66443), (361, 55952), (494, 40888), (538, 37544), (722, 27976), (988, 20444), (1076, 18772), (1444, 13988), (1976, 10222), (2152, 9386), (2888, 6994), (3497, 5776), (3952, 5111), (4304, 4693)]